<template>
  <form-item-wrapper :designer="designer" :field="field" :rules="rules" :design-state="designState"
                     :parent-widget="parentWidget" :parent-list="parentList" :index-of-parent-list="indexOfParentList"
                     :sub-form-row-index="subFormRowIndex" :sub-form-col-index="subFormColIndex" :sub-form-row-id="subFormRowId">
    <div :class="[!!field.options.autoFullWidth ? 'auto-full-width' : '', isReadMode ? 'readonly-mode-date-range' : '']">
      <date-range  ref="fieldEditor" :type="field.options.type" v-model:modelValue="dateFidleModel"
                    :key="widgetKey"
                    :dateRangeClass="[!!field.options.autoFullWidth ? 'auto-full-width' : '']"
                    :disabled="field.options.disabled" :readonly="field.options.readonly || field.options.disabled || field.options?.isAllowEditSelectorField == '2'"
                    :clearable="field.options.clearable" :editable="field.options.editable"
                    :format="field.options.format" :value-format="field.options.valueFormat" 
                    :time-format="field.options.format.split(' ')[1]"
                    :start-placeholder="field.options.startPlaceholder || i18nt('render.hint.startDatePlaceholder')"
                    :end-placeholder="field.options.endPlaceholder || i18nt('render.hint.endDatePlaceholder')"
                    @focus="handleFocusCustomEvent" @blur="handleBlurCustomEvent"
                    @change="onFieldChangeEvent"/>
      <template v-if="isReadMode">
        <span class="readonly-mode-field">{{contentForReadMode}}</span>
      </template>
    </div>
  </form-item-wrapper>
</template>

<script>
  import FormItemWrapper from './form-item-wrapper'
  import emitter from '@/utils/emitter'
  import i18n, {translate} from "@/utils/i18n";
  import fieldMixin from "@/components/form-designer/form-widget/field-widget/fieldMixin";
  import {generateId, isJSON} from "@/utils/util";
  import dateRange from "@/components/ZHLX-Components/ZHLX-dateRange/index.vue";
  import dayjs from "dayjs";

  export default {
    name: "date-range-widget",
    componentName: 'FieldWidget',  //必须固定为FieldWidget，用于接收父级组件的broadcast事件
    mixins: [emitter, fieldMixin, i18n],
    props: {
      field: Object,
      parentWidget: Object,
      parentList: Array,
      indexOfParentList: Number,
      designer: Object,

      designState: {
        type: Boolean,
        default: false
      },

      subFormRowIndex: { /* 子表单组件行索引，从0开始计数 */
        type: Number,
        default: -1
      },
      subFormColIndex: { /* 子表单组件列索引，从0开始计数 */
        type: Number,
        default: -1
      },
      subFormRowId: { /* 子表单组件行Id，唯一id且不可变 */
        type: String,
        default: ''
      },

    },
    components: {
      FormItemWrapper,
      dateRange,
    },
    data() {
      return {
        oldFieldValue: null, //field组件change之前的值
        fieldModel: null,
        rules: [],
        widgetKey: '',
      }
    },
    computed: {
      contentForReadMode() {
        if (!this.fieldModel) {
          return ''
        } else {
          let formatDate = this.fieldModel.map((item, index) => {
            if (typeof item == "number" || isJSON(item) && typeof JSON.parse(item) === "number") {
              return dayjs(item * 1).format(this.field.options.format)
            } else if (typeof item != "number") {
              return dayjs(item.replace(/年|月/g, '-').replace(/时|分/g, ':').replace(/日|秒/g, '')).format(this.field.options.format)
            } else {
              return item
            }
          })
          return formatDate[0] + ' - ' + formatDate[1]
        }
      },

      dateRangeKey() {
        return this.widgetKey || this.field.id
      },
      alignColumn(){
        return this.field.options.alignColumn ? 'column' : 'row'
      },
      
      dateFidleModel: {
        get() {
          if (!this.fieldModel) {
            return []
          } else {
            let formatDate = this.fieldModel.map((item, index) => {
              if (typeof item == "number" || isJSON(item) && typeof JSON.parse(item) === "number") {
                return (item * 1)
              } else {
                return item
              }
            })
            return formatDate
            // return this.field.options.valueFormat === "x" && this.fieldModel?.length ? this.fieldModel.map(i => isJSON(i) && typeof JSON.parse(i) === "number" ? i *= 1 : i) : this.fieldModel
          }
        },
        set(value) {
          this.fieldModel = value
        },
      },

    },
    watch: {
      // 'field.options.format' : function (params) {
      //   this.refreshWidgetKey()
      // },
      'field.options.format': {
        handler: function (val) {
          this.refreshWidgetKey()
        },
        deep: true
      }
    },
    beforeCreate() {
      /* 这里不能访问方法和属性！！ */
    },

    created() {
      /* 注意：子组件mounted在父组件created之后、父组件mounted之前触发，故子组件mounted需要用到的prop
         需要在父组件created中初始化！！ */
      this.registerToRefList()
      this.initFieldModel()
      this.initEventHandler()
      this.buildFieldRules()

      this.handleOnCreated()
    },

    mounted() {
      this.handleOnMounted()
    },

    beforeUnmount() {
      this.unregisterFromRefList()
    },

    methods: {
      refreshWidgetKey() {  //强制刷新组件！！
        this.widgetKey = 'date-range-key-' + generateId()
      },

    }
  }
</script>

<style lang="scss" scoped>
  @import "../../../../styles/global.scss"; /* form-item-wrapper已引入，还需要重复引入吗？ */

  .full-width-input {
    width: 100% !important;
  }

  .auto-full-width {
    width: 100%;

    :deep(.el-date-editor) {
      width: 100% !important;
      padding-left: 0;
      padding-right: 0;
    }

    :deep(.el-range__icon) {
      margin-left: 10px;
    }
  }

  .readonly-mode-date-range {
    :deep(.el-range-editor) {
      display: none;
    }
  }
  :deep(.el-form-item) {
    flex-direction: v-bind(alignColumn);
  }
</style>
